:root {
  --bg: #06111f;
  --bg-soft: rgba(10, 23, 42, 0.72);
  --panel: rgba(8, 20, 37, 0.78);
  --panel-strong: rgba(12, 28, 51, 0.92);
  --line: rgba(150, 184, 255, 0.16);
  --line-strong: rgba(150, 184, 255, 0.28);
  --text: #edf4ff;
  --muted: #a4b7d3;
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --accent-warm: #fbbf24;
  --shadow: 0 24px 80px rgba(3, 9, 18, 0.45);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --content-width: min(1180px, calc(100vw - 32px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 28%),
    radial-gradient(circle at 85% 15%, rgba(251, 191, 36, 0.14), transparent 22%),
    linear-gradient(180deg, #08111f 0%, #09172a 48%, #050b14 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle at center, black 44%, transparent 90%);
  opacity: 0.3;
}

.lang-en {
  display: none;
}

body[data-lang="en"] .lang-ru {
  display: none !important;
}

body[data-lang="en"] .lang-en {
  display: inline !important;
}

body[data-lang="ru"] .lang-en {
  display: none !important;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: var(--content-width);
  margin: 0 auto;
  padding: 24px 0 72px;
  position: relative;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  margin-bottom: 28px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(6, 17, 31, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  font-family: "Unbounded", sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.brand-role {
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

.site-nav a {
  color: var(--muted);
  transition: color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  transform: translateY(-1px);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.lang-button {
  min-height: 36px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.lang-button:hover,
.lang-button:focus-visible {
  color: var(--text);
  transform: translateY(-1px);
}

.lang-button.is-active {
  color: #03111f;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
}

.section {
  margin-top: 28px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  gap: 24px;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.panel,
.timeline-card,
.contact-banner,
.skill-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero-copy {
  padding: 42px;
}

.hero-copy::after,
.hero-panel::after,
.panel::after,
.timeline-card::after,
.skill-card::after,
.contact-banner::after {
  content: "";
  position: absolute;
  inset: auto -30% -55% auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(125, 211, 252, 0.16), transparent 70%);
  pointer-events: none;
}

.eyebrow,
.section-tag,
.card-label,
.stat-label {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.section-head h2,
.panel h2,
.contact-banner h2 {
  margin: 0;
  font-family: "Unbounded", sans-serif;
  line-height: 1.06;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 4rem);
  max-width: none;
}

.hero-role-line {
  margin: 14px 0 0;
  color: #d7e9ff;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 700;
}

.hero-summary,
.panel p,
.section-head p,
.contact-banner p,
.skill-card p,
.simple-list,
.signal-list {
  color: var(--muted);
  line-height: 1.72;
  font-size: 1rem;
}

.hero-summary {
  max-width: 60ch;
  margin: 18px 0 0;
  font-size: 1.04rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #03111f;
}

.button.secondary {
  background: rgba(251, 191, 36, 0.14);
  border-color: rgba(251, 191, 36, 0.28);
}

.button.ghost {
  border-color: var(--line-strong);
}

.hero-facts,
.signal-list,
.simple-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-facts {
  display: grid;
  gap: 10px;
  margin-top: 30px;
}

.hero-facts li,
.signal-list li,
.simple-list li,
.contact-links a {
  position: relative;
  padding-left: 18px;
}

.hero-facts li::before,
.signal-list li::before,
.simple-list li::before,
.contact-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-warm) 100%);
  transform: translateY(-50%);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 16px;
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(12, 28, 51, 0.92), rgba(7, 17, 31, 0.92));
}

.signal-card,
.compact-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(4, 11, 22, 0.52);
  border: 1px solid rgba(125, 211, 252, 0.12);
}

.signal-list {
  display: grid;
  gap: 12px;
}

.compact-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.compact-points > span {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: #d7e9ff;
  font-size: 0.95rem;
}

.stack-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.stack-cloud span {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #d7e9ff;
  background: rgba(255, 255, 255, 0.04);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.panel {
  padding: 28px;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.stat-value {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
}

.section-head {
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.section-head p {
  margin: 12px 0 0;
}

.timeline-card {
  padding: 30px;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.experience-card {
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.experience-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.experience-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.skill-card {
  padding: 22px;
  min-height: 170px;
}

.skill-card h3 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.contact-banner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 22px;
  padding: 32px;
  background:
    linear-gradient(135deg, rgba(56, 189, 248, 0.14), rgba(251, 191, 36, 0.08)),
    var(--panel-strong);
}

.contact-links {
  display: grid;
  align-content: center;
  gap: 14px;
}

.contact-links a {
  padding: 14px 16px 14px 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  transition: transform 180ms ease, border-color 180ms ease;
}

.contact-links a:hover,
.contact-links a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  animation: fade-up 700ms ease forwards;
}

.hero-panel.reveal {
  animation-delay: 120ms;
}

.panel.reveal:nth-of-type(2),
.timeline-card.reveal,
.skill-card.reveal:nth-child(2),
.contact-banner.reveal {
  animation-delay: 160ms;
}

.skill-card.reveal:nth-child(3) {
  animation-delay: 220ms;
}

.skill-card.reveal:nth-child(4) {
  animation-delay: 280ms;
}

.skill-card.reveal:nth-child(5) {
  animation-delay: 340ms;
}

@keyframes fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .hero,
  .section-grid,
  .contact-banner {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .experience-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100vw - 20px, 100%);
    padding-top: 14px;
  }

  .site-header {
    position: static;
    padding: 16px;
    border-radius: 28px;
  }

  .header-tools,
  .brand-block,
  .site-header,
  .site-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-tools {
    width: 100%;
    margin-left: 0;
  }

  .hero-copy,
  .hero-panel,
  .panel,
  .timeline-card,
  .contact-banner {
    padding: 22px;
    border-radius: 26px;
  }

  .mini-grid,
  .experience-grid,
  .skills-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-role-line {
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}